<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号密码登录">
          <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;" :message="this.accountLoginErrMsg" />

          <a-form-item v-if="tenantOpen">
            <a-select
              style="width: 100%"
              size="large"
              placeholder="请选择租户"
              v-decorator="['tenantCode', {rules: [{ required: true, message: '请选择租户！' }]}]" >
              <a-select-option v-for="(item,index) in tenantsList" :key="index" :value="item.code" >{{ item.name }}</a-select-option>
            </a-select>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账号"
              v-decorator="[
                'account',
                { initialValue:'superAdmin' },
                {rules: [{ required: true, message: '请输入帐户名' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码"
              v-decorator="[
                'password',
                { initialValue:'123456' },
                {rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="手机号登录">
          <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;" :message="this.accountLoginErrMsg" />
          <a-form-item v-if="tenantOpen">
            <a-select
              style="width: 100%"
              size="large"
              placeholder="请选择租户"
              v-decorator="['tenantCode', {rules: [{ required: true, message: '请选择租户！' }]}]" >
              <a-select-option v-for="(item,index) in tenantsList" :key="index" :value="item.code" >{{ item.name }}</a-select-option>
            </a-select>
          </a-form-item>
          <a-form-item>
            <a-input size="large" type="text" placeholder="手机号" v-decorator="['mobile', {rules: [{ required: true, pattern: /^1[34578]\d{9}$/, message: '请输入正确的手机号' }], validateTrigger: 'change'}]">
              <a-icon slot="prefix" type="mobile" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="验证码" v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-decorator="['rememberMe', { valuePropName: 'checked' }]">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa'} }"
          class="forge-password"
          style="float: right;"
        >忘记密码</router-link>
      </a-form-item>

      <a-form-item>
        <Verify
          @success="verifySuccess"
          :mode="'pop'"
          :captchaType="captchaType"
          :imgSize="{ width: '330px', height: '155px' }"
          ref="verify"
        ></Verify>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定</a-button>
      </a-form-item>

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a>
          <a-icon class="item-icon" type="alipay-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="taobao-circle"></a-icon>
        </a>
        <a>
          <a-icon class="item-icon" type="weibo-circle"></a-icon>
        </a>
        <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
      </div>
    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    ></two-step-captcha>
  </div>
</template>

<script>
  import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
  import { mapActions } from 'vuex'
  import { getSmsCaptcha, getCaptchaOpen } from '@/api/modular/system/loginManage'
  import Verify from '@/components/verifition/Verify'

  export default {
    components: {
      TwoStepCaptcha,
      Verify
    },
    data () {
      var captchaTypeValue = 'clickWord'
      var min = 0
      var max = 100
      var random = Math.floor(Math.random() * (max - min)) + min

      if (random % 2 === 0) {
        captchaTypeValue = 'blockPuzzle'
      }
      if (random % 2 === 1) {
        captchaTypeValue = 'clickWord'
      }
      return {
        customActiveKey: 'tab1',
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        isLoginError: false,
        requiredTwoStepCaptcha: false,
        stepCaptchaVisible: false,
        form: this.$form.createForm(this),
        state: {
          time: 60,
          loginBtn: false,
          // login type: 0 email, 1 username, 2 telephone
          loginType: 0,
          smsSendBtn: false
        },
        accountLoginErrMsg: '',
        tenantOpen: false,
        captchaOpen: false, // 是否开启验证码
        tenantsList: [],
        loginParams: [], // 登录参数
        captchaType: captchaTypeValue
      }
    },
    created () {
      this.getCaptchaOpen()
    },
    methods: {
      ...mapActions(['Login', 'Logout', 'dictTypeData']),
      /**
       * 获取验证码开关
       */
      getCaptchaOpen () {
        getCaptchaOpen().then((res) => {
          if (res.success) {
            this.captchaOpen = res.data
          }
        })
      },
      // handler
      handleUsernameOrEmail (rule, value, callback) {
        const { state } = this
        const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
        if (regex.test(value)) {
          state.loginType = 0
        } else {
          state.loginType = 1
        }
        callback()
      },
      handleTabClick (key) {
        this.isLoginError = false
        this.customActiveKey = key
        // this.form.resetFields()
      },
      handleSubmit (e) {
        e.preventDefault()
        const {
          form: { validateFields },
          state,
          customActiveKey,
          Login
        } = this

        state.loginBtn = true
        const validateFieldsKey = customActiveKey === 'tab1' ? ['account', 'password'] : ['mobile', 'captcha']
        if (this.tenantOpen) {
          validateFieldsKey.push('tenantCode')
        }
        validateFields(validateFieldsKey, { force: true }, (err, values) => {
          this.loginParams = values
          if (!err) {
            // 是否开启验证码
            if (this.captchaOpen) {
              this.$refs.verify.show()
              state.loginBtn = false
              return
            }
            const loginParams = { ...values }
            delete loginParams.account
            loginParams[state.loginType !== 0 ? 'email' : 'account'] = values.account
            loginParams.password = values.password
            if (this.tenantOpen) {
              loginParams.tenantCode = values.tenantCode
            }
            Login(loginParams)
              .then((res) => this.loginSuccess(res))
              .catch(err => this.requestFailed(err))
              .finally(() => {
                state.loginBtn = false
              })
          } else {
            setTimeout(() => {
              state.loginBtn = false
            }, 600)
          }
        })
      },
      /**
       * 获取验证码
       */
      verifySuccess(params) {
        this.loginParams.code = params.captchaVerification
        this.Login(this.loginParams).then((res) => this.loginSuccess(res))
          .catch(err => this.requestFailed(err))
          .finally(() => {
            this.state.loginBtn = false
          })
      },
      getCaptcha (e) {
        e.preventDefault()
        const { form: { validateFields }, state } = this

        validateFields(['mobile'], { force: true }, (err, values) => {
          if (!err) {
            state.smsSendBtn = true

            const interval = window.setInterval(() => {
              if (state.time-- <= 0) {
                state.time = 60
                state.smsSendBtn = false
                window.clearInterval(interval)
              }
            }, 1000)

            const hide = this.$message.loading('验证码发送中..', 0)
            getSmsCaptcha({ mobile: values.mobile }).then(res => {
              setTimeout(hide, 2500)
              this.$notification['success']({
                message: '提示',
                description: '验证码获取成功，您的验证码为：' + res.result.captcha,
                duration: 8
              })
            }).catch(err => {
              setTimeout(hide, 1)
              clearInterval(interval)
              state.time = 60
              state.smsSendBtn = false
              this.requestFailed(err)
            })
          }
        })
      },
      stepCaptchaSuccess () {
        this.loginSuccess()
      },
      stepCaptchaCancel () {
        this.Logout().then(() => {
          this.loginBtn = false
          this.stepCaptchaVisible = false
        })
      },
      loginSuccess (res) {
        this.$router.push({ path: '/' })
        this.isLoginError = false
        // 加载字典所有字典到缓存中
        this.dictTypeData().then((res) => { })
      },
      requestFailed (err) {
        this.accountLoginErrMsg = err
        this.isLoginError = true
      }
    }
  }
</script>

<style lang="less" scoped>
  .user-layout-login {
    label {
      font-size: 14px;
    }

    .getCaptcha {
      display: block;
      width: 100%;
      height: 40px;
    }

    .forge-password {
      font-size: 14px;
    }

    button.login-button {
      padding: 0 15px;
      font-size: 16px;
      height: 40px;
      width: 100%;
    }

    .user-login-other {
      text-align: left;
      margin-top: 24px;
      line-height: 22px;

      .item-icon {
        font-size: 24px;
        color: rgba(0, 0, 0, 0.2);
        margin-left: 16px;
        vertical-align: middle;
        cursor: pointer;
        transition: color 0.3s;

        &:hover {
          color: #1890ff;
        }
      }

      .register {
        float: right;
      }
    }
  }
</style>
